Longines · GrandeVitesse
Strap for GrandeVitesse Chronograph Black Bracelet
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the GrandeVitesse L3.635.4.56.6 (aka: L36354566)
Selected for the 20 mm lug width · workshop selection
Hammered Calfskin Watch Strap Green with Ecru Stitching€98
Hammered Yellow Strap with Ecru Stitching€98
Black Calfskin Rally Watch Strap – Handmade in Milan€110
Red Suede Strap with Stitching — Milano Straps€90
Grand Cavalier Military Brown Leather Strap€120
The GrandeVitesse L3.635.4.56.6 (aka: L36354566), seen from the bench
Frequently asked questions
What is the lug width of the Longines GrandeVitesse L3.635.4.56.6?
The lug width is 20mm. This is the distance between the lateral lugs of the case and it is the parameter that determines the compatibility of any strap. All 20mm straps fit your case without any adaptation.
Which strap should I choose for the Longines GrandeVitesse?
It depends on your usage style. For daily elegance: alligator in vegetable tanning or shell cordovan. For sportiness: NATO in canvas, rubber, or vegetable calf. The 20mm lug width allows versatile choices without construction compromises.
How do I change the strap on the Longines GrandeVitesse L3.635.4.56.6?
The lateral pins are removed laterally with a small tap. Position the watch on a soft cloth to avoid scratching the case, apply gentle manual pressure: the pin comes out easily. Insert the new strap by aligning the holes and repeat in the opposite direction.
Can I use aftermarket straps on this model?
Yes, all 20mm straps are compatible. The Longines GrandeVitesse L3.635.4.56.6 accepts any quality of leather, rubber or fabric in the correct size, without modifications to the case.
How long does a leather strap last on the Longines GrandeVitesse?
A quality leather strap (vegetable-tanned, alligator or shell cordovan) lasts 3-5 years with daily use, extendable up to 7-10 years with regular maintenance. The natural patina increases with aging, making the leather more beautiful over time.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only